Certified Rhythm Analysis Technician (CRAT) Practice Exam

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What is the purpose of adequate electrode gel during an ECG?

To prevent wandering baseline.

To ensure proper adhesion of electrodes.

To facilitate electrical conductivity.

The use of adequate electrode gel during an ECG is crucial because it facilitates electrical conductivity between the skin and the electrodes. The gel acts as a medium that reduces the impedance at the interface, allowing the electrical signals generated by the heart to be transmitted more effectively to the ECG machine. This ensures that the readings are accurate and clear, which is essential for proper interpretation by healthcare professionals. Without adequate conductivity, the ECG might produce distorted or poor-quality waveforms, which can lead to misdiagnosis or misinterpretation of a patient’s cardiac condition.

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To reduce patient discomfort.

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